12554143884156 has 36 divisors (see below), whose sum is σ = 34075533401448. Its totient is φ = 3586898252448.

The previous prime is 12554143884133. The next prime is 12554143884181. The reversal of 12554143884156 is 65148834145521.

It is a junction number, because it is equal to n+sod(n) for n = 12554143884096 and 12554143884105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10675291831 + ... + 10675293006.

Almost surely, 2^{12554143884156} is an apocalyptic number.

It is an amenable number.

12554143884156 is an abundant number, since it is smaller than the sum of its proper divisors (21521389517292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12554143884156 is a wasteful number, since it uses less digits than its factorization.

12554143884156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21350584858 (or 21350584849 counting only the distinct ones).

The product of its digits is 18432000, while the sum is 57.

The spelling of 12554143884156 in words is "twelve trillion, five hundred fifty-four billion, one hundred forty-three million, eight hundred eighty-four thousand, one hundred fifty-six".